Add more supported Microsoft Translator languages

[jamiegough]

Problem Statement

I need to add more languages to my localisations such as Gujarati and Punjabi, which are supported by Microsoft Machine Translator, but isn't in the list of Language enums in BartyCrouch/Sources/BartyCrouchTranslator/MicrosoftTranslatorApi/Models/Language.swift

Suggested Solution

Is it possible to add in more Microsoft Machine Translator supported languages?

[jamiegough]

Closed first pull request as it failed - duplicate enum case that wasn't picked up. Please ignore or delete #217